Scores on a test are normally distributed with a mean of 77.4and a standard deviation of 5. Find the value of P75 (the 75th
percentile)

Answers

Answer 1

Answer:

Hence, in answering the stated question, we may say that As a result, the expressions value of P75 is 80.375.

what is expression ?

In mathematics, you can multiply, divide, add, or subtract. An expression is formed as follows: Expression, number, and math operator Numbers, parameters, and functions make up a mathematical expression. It is possible to contrast phrases and expressions. Every mathematical statement that contains variables, numbers, and a mathematical action between them is referred to as an expression. For example, the phrase 4m + 5 is made up of the phrases 4m and 5, as well as the variable m from the provided equation, all separated by the mathematical sign +.

To determine the value of P75, or the 75th percentile, we must first determine the score at which 75% of the scores fall.

z = (x - μ) / σ

where x is the score to be converted, the mean, and the standard deviation.

As a result, we can write:

0.75 = P(Z ≤ 0.675)

where Z is the mean of the standard normal variable and the standard deviation is 1.

Now we can rearrange the z-score calculation to find the score x:

x = μ + zσ

Using the values we have:

x = 77.4 + (0.675)(5) (5)

x = 80.375

As a result, the value of P75 is 80.375.

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What additional information is required for the 2 triangles to be congruent by ASA

Answers

Answer:

Choice A

Step-by-step explanation:

That's because IJ and UV are both in between two angles which are congruent to each other

Answer:

Step-by-step explanation:

You need a side inbetween the angles

Orlo Jackman heard an ad on the radio for a weekend cruise to the Bahamas, available for $150 off the regular price this week only . This discount reflected a 25% markdown. What is the regular price of the cruise?

Answers

Answer:

$600

Step-by-step explanation:

Given :

Orlo Jackman heard an ad on the radio for a weekend cruise to the Bahamas, available for $150 off the regular price this week only .

This discount reflected a 25% markdown

To Find : . What is the regular price of the cruise?

Solution :

Let the original price be x

Since we are given that discount reflected a 25% markdown

⇒ $(25)/(100) x$ is the off

And we are also given that there is an off of 150

⇒ $(25)/(100) x =150$

⇒ $x =(150*100)/(25)$

⇒ $x =600{25}$

Hence the original price of the cruise is $600

$600 because you must multiply. 150/ (25/100)... 1,500/25= 600

What kind of transformation is this?

Answers

$\huge\boxed{Hello!:)}$

This transformation is called $\huge\bold{Reflection.}$

Reflection simply means an object has been reflected.

Here, the triangle has been reflected.

$\huge\boxed{Thus, \: the\: answer\: is: \: Reflection.}$

$\huge\mathfrak{Good \:luck!}$

$\boxed{UnknownGirl\: here\: to\:help}$

Answer:

Reflection

Step-by-step explanation:

It is a reflection because it is like they are looking in the mirror.

Six years ago Anita was P times as old as Ben was. If Anita is now 17 years old, how old is Ben now in terms of P ?

Answers

Ben is $(P)/(11)+6$ old now in terms of P .

What is linear equation?

A linear equation in two variables is of the form Ax + By + C = 0, in which A and B are the coefficients, C is a constant term, and x and y are the two variables, each with a degree of 1. For example, 7x + 9y + 4 = 0 is a linear equation in two variables. If we consider two such linear equations, they are called simultaneous linear equations.

According to the question

Six years ago Anita was P times as old as Ben was.

Let Ben's age now be B.

Anita's age now is A.

Writing linear equation in two variables

(A-6) = P(B-6)

But A is 17 and therefore

17 - 6 = P(B - 6)

11 = P(B - 6)

$(11)/(P)$ = (B-6)

$B = (P)/(11)+6$

Hence,

Ben is $(P)/(11)+6$ old now in terms of P .

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Anita is 17 years old now
6 years ago she was 17- 6 years = 11 years
thus 6 years ago Ben is P 11 years old
therefore Ben will be P 11 + 6 years old now

David waits by the crosswalk sign on his way to school. The angle outlined on the sign turns through 50 one-degree angles. Find the measure of the angle.

Answers

Answer:

7 $(1)/(5)$ th turns

Step-by-step explanation:

An angle that turn through n one-degrees is said to have an angle measure of n degree. An angle that turns through 1/360 of a circle is called a one degree angle, this is used to measure angles

:. measure of the angle turns through 50 one degree angles

= $(360)/(50)$ = 7 $(1)/(5)$ th turns.